Window-screen.



E. OHNSTRAND.

WINDOW SCREEN- APPLICATION mso SEPT-17, 1913.

1,186,517. Patented June 6,1916.

THE coLuMmA PLANOGRAPH 60-. WASHINGTON. u. C-

UNITED STATES PATENT OFFICE.

ENOCH OI-INS'IRAND, OF SYRACUSE, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO SHERWOOD METAL WORKING GOMPANY, 'OF SYRACUSE, NEV YORK, A CORPO- RATION.

WINDOW-SCREEN.

Specification of Letters Patent.

Application filed September 17, 1913. Serial No. 790,191.

To all who-m it may concern:

Be it known that I, ENOCH OHNSTRAND, a citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented an Improvement in lVindowScreens, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to. metal screens such as are commonly used for doors and windows, and is more particularly intended to apply to the type of such screens known as extensible.

My object is to produce a screen in which the corner has greater rigidity, increased strength, and a smoother appearance.

In the preferred construction of the more complete embodiment of my invention, I provide means for protecting the otherwise rough corner and overlapping the adjacent flanges at the corner so as to make a snug, strong, neat joint which is practical and inexpensive to make.

The screen consists of a central screen portion of wire netting and an inclosing metal peripheral rim or bounding frame in which the edges of the netting are crimped or otherwise immovably secured. The type of frame to which I have shown my invention as applied is that in which each side or edge of the screen consists of a plate of sheet metal folded over on itself lengthwise to form two strips to embrace the edge of the netting and then bent lengthwise to form a strengthening rib or marginal flange. One of these edge plates or members is provided with a projecting ear or portion which is bent downwardly so as to overlap the adjacent rib or flange at the extreme corner, and this constitutes one featureof my invention, hereinafter claimed per se. By this construction, the abutting flanges of the two adjacent screen-edges at the corner are held immovably so that they cannot gape open or present a rough open corner, and the screen is greatly strengthened. In carrying out my invention in this respect, the nettingembracing portions of the edge members may be inclosed one within the other at the corner, or one strip of each plate may be inserted between the strips of the meeting plate, or they may be so formed'as simply to be abutted against each other in one and the same plane so as thereby to present a smooth surface without any overlapping in the plane of the screen. The lastmentioned arrangement is preferred and constitutes the second feature ofmy invention, which feature I herein claim 7967" 86. The advantage of this construction is that it tends to make the corner smooth, thin and light, as distinguished from the bunched and cumbersome corner produced by the overlapping or interlapping constructions, and it also tends to hold the netting smoother and more snugly because the plate metal is thereby permitted to rest down flat upon the netting at every point where the netting enters the corner. The abutting portions of the two plates which constitute the adjacent edge members lie smoothly in one and the same plane and in smooth direct contact with the netting. I secure this smooth flat construction and avoid the bunched, thick lapped construction by cutting away the metal of one edge member to form a notch or reentr-ant angle corresponding in shape and size to the adjacent corner of the adjacent edge member, and in this notch I fit said adjacent edge member edge to edge with the notched member so that they are thus permitted both to lie in one and the same plane parallel to the wire netting embraced by them both and ex tending integrally from one member to the other at this notched joint and throughout the corner. To give extreme strength and rigidity and to facilitate the handling of the wire netting and the manufacture or putting together of the screen, I provide a corner plate or joint-bond in the formof a I small flat piece of metal, preferably secured to the wire netting before the latter is embraced by the frame members at the corner, this corner plate being of suflicient'extent to be embraced bythe adjacent frame members far enough to enter within the flanged portions of said members when the latter are bent later-ally as aboveexplained; Thus the corner plates finally become similarly bent and then constitute rigid corner braces for the frame and reinforce strengtheners for the netting, so that the netting cannot pos sib'ly pull out at the corner and neither frame member can yield or loosen at the joint or anywhere at the corner notwithstanding that said frame members may possibly have been put together by my preferred construction to form the flat abutted" joint aforesaid. This corner bond or ointiolder constitutes the third novel feature which I herein claim per 80. Each of the aforesaid three features is of practical advantage and value taken alone, and when any two of them are used together they cooperate to produce still stronger and better corner, while the employment of all three of them together gives the screen a strength and rigidity and yet a neatnes and lightness at the corner which long life to the screen and prevents all tendency to sag or become distorted and prevents its binding in the runway when being raised or lowered (for windows) or opened or closed (for doors).

In the accompanying drawings, in which I have illustrated my invention in all its details and embodiments, Figure 1 is a perspective view of the corner of a screen constructed according to my invention; Fig. 2 is a plan view showing the parts being placed together; Figs. 37 are plan views of different forms of. the frame members; Figs. 8 and 9 are transverse sectional views show ing different ways of interlocking or overlapping the frame members; Fig. 10 is a plan vie-v. of the most complete embodiment of my screen corner; Fig. 11. is a cross-sectional view on the dotted line 11-11, Fig. 10; and Fig. 12 is a similar sectional. view on the line 1212, Fig. 10.

Referring to Fig. 2, which shows he pre ferred embodiment of my invention which includes all three of the separate features or components of the complete invention, 1 have shown two frame members 1, 2, of any suitable sheet metal, such as steel or iron, and a reticulated screen part 3 of ordinary wire netting. On this netting I place at the corner a corner plate orjoint-bond con sisting of a. flat piece of metal, preferably of the same kind as the frame members, which piece extends approximately even with the adjacent edges of the netting as indicated at the edges 5 and 6 and diagonally across the corner. The plate a is preferably, although not always, secured to the netting, as by spotting it thereto by an electric spotting tool. Each of the frame members is folded or doubled over on itself lengthwise, the member 1 thus consisting of an under strip 7 and an upper strip 8 and the member 2 of an under strip 9 and an upper strip 10. and, when the netting is inserted into the folds between these respective strips, it is inserted preferably as far as possible so that the edge 5 is brought against the fold or extreme outer edge 11 of the memher 1 and the edge 6 is brought against the fold or extreme outer edge 12 of the member 2. The members 1 and 2 (and the netting and corner plate thus contained therein) are laterally bent lengthwise along the lines 13, 1d respectively for crimping them together in interlocked relation. And, to permit of this folding without making an awkward corner, the netting 3 and plate 4; are cut away or notched at 15, 16, so that when in place the edge 15 is in alinement with the bend 14. The plate or metal part 4 has thus two projections, one of which extends with in the member 1 from the line 13 to the edge 11, and the other of which extends within the member 2 from the line 1 1 to the edge 12. The edge or flap 1?, having a depth corresponding to the length of the edge 16, occupies the flange or laterally bent portion of the frame 2 which is between the edge 12 thereof and the line 14-, and the edge or flap 18, having a depth corresponding to the length of the edge 15, occupies the flange or laterally bent portion of the frame 1 which is between the edge 11 thereof and the line 13. In order that the two frame members 1 and 2 may lie flat or in one and the same plane, 1 cut them so that they will abut edgewise. They may be cut in many forms to accomplish this purpose, but preferably 1 notch one of the frame members, herein shown as the frame member 1, to form a recntrantangle .as shown at 19, Fig. 3, for receiving the adjacent corner 20 of the member 2, the edges of the two members being simply abutted against each other as shown in Fig. 2 so that they have a smooth surface atthe joint, neither overlapping on the other. This construction is stronger than to miter the edge for example, as thereby a strong bracing effect is secured. The edgewisc abutting of the frame members at the corner gives a smooth joint, a thin corner, and permits a neat fold. Having bent the two frame members 1, 2 laterally in the same direction along the lines 13, 14, the member 1 is bent over laterally along the line 21, as shown in Fig. 11.

In order to bind the corner with great strength and rigidity, I provide the memher 1 with a projecting car or corner clamp 22 which extends beyond the netting 3 and plate 1 and is bent down over the flange por tion of the member 2 best shown in Figs. 1 and 12. The two upturned flanges of the members 1 and 2, abut at the corner to hold the frame rigid against any inward bending movement of said flanges, and the corner clamp or ear 22 prevents any outward bending or deflection of either of said flanges. At the same time, the clamp or car pre vents any gap between the flanges and gives a smooth corner, protecting the otherwise rough opening or gap. I have found that by thus providing the flanged frame members with an overlapping portion at the corner where they abut against each other, such extreme strength and rigidity are secured as to withstand all the rough usage to which screens are commonly subjected and to prolong the life of the screen besides af fording a smooth corner which cannot catch the clothing or lacerate the hand. This clamp also maintains the various bent portions in such immovable relation that it becomes impossible for the netting to pull out or loosen. This is so irrespective of whether the corner plate 4 is employed or not, and irrespective of whether the members 1 and 2 have the smooth joint described or are overlapped in the old way. hen the corner plate 4 is employed, as in my preferred embodiment, the corner is rendered still stronger. As this plate, which is contained between the strips 7 and 8 of the frame member 1 and between the strips 9 and 10 of the frame member 2, receives the same lateral bends and angular formation as the frame members 1 and 2, and as these bends, which are along the lines 13 and 21 of the member 1 and 14 of the member 2, are at right angles in the respective portions 17 and 18 of said corner plate 4, it results that the corner plate constitutes not only a strong reinforce but is so interlocked with the netting 3 and with the frame members 1 and 2 at the corner of the screen as to unite and brace the otherwise separate members 1, 2, and 3 into an exceedingly rigid, strong corner. This is the result irrespective of whether the corner clamp 22 is employed or not, but when the latter is employed in addition to the corner plate 4, the construction is not only strong and rigid, but exceedingly neat and smooth at the corner. If desired, the plate 4 is given a sufficient width to be visible in the finished article as shown in Fig. 10.

If it is not desired to have the smooth thin construction of abutting corners 19, 20 as shown in Fig. 2, the frame member is not cut out at 19 but is left as indicated at 23, Fig. 4, and then the adjacent frame member 2 is simply slid over the adjacent member as shown in Fig. 9, so that the strips 9 and 10 of said member 2 embrace the entire adjacent member between them or the member 2 'is interlocked with the adjacent member,

2'. 6., the strip 10 is inserted within the latter as shown in Fig. 8. Still greater strength may be secured by providing the member 2 with an integral projection 24, Fig. 7, having a length to extend within the member 1 against the fold 11 so that, when the member 1 receives its lateral bends, said end 24 is likewise bent therewith along the lines 13 and 21 thereof. This integral projection 24 performs the same binding action as the corresponding projection before mentioned of the plate 4. The plate 4 has two projections extending at right angles to each other, which, when crimped and interlocked with the two frame members in the manner already explained, constitute internal means for binding the frame at the corner. One of these projections of the plate 4 extends between the strips of one member and is bent laterally within the flange of said member in conformity to the lateral bending of said member, and is immovably connected also with the other frame member by means of the opposite projection of said plate 4. The two projections of the plate 4 extend at right angles to each other between the strips of the respective members, and said two proj ections are respectively bent laterally within the respective flanges of said two frame members, whereby said two projections within said respective strips and flanges are immovably connected respectively with the opposite frame members. Further interlocking and strength-giving may be provided at the corner by extending the side or strip 7 of said member 1, as indicated at 25, Fig. 6, a distance corresponding approximately to the length of the clamp piece 22 so that, when inserted within the member 2, the end of the extension 25 abuts against the edge of said member at the fold 22 and hence, when the member 2 is laterally bent, said extension 25 receives the same bend along the line 14.

In the construction last described. (Figs. 6 and 7), I have described the holding and bracing functions of the corner plate 4 between the frame members themselves instead of employing a separate part or piece, the projection 24 serving to bind and interlock and brace the member 2 to and within the member 1 while the extension 25 similarly serves to bind and interlock and brace the member 1 to and within the member 2. This necessitates, however, the partial over lapping of the frame members 1 and 2, and as the smooth, thin construction shown in Fig. 2 has many advantages over said overlapped arrangement, I consider the former my preferred construction.

As already intimated, the various individual features of my invention are capable of separate employment and of use in other combinations. Likewise, while I have shown and explained my invention in all its preferred details, it will be understood that where a lighter screen of less strength is required, some of the features may be omitted.' Also, for reasons of manufacture and preference of the trade, one feature. may be used to the exclusion of another. the foregoing reasons, I have pointed out and hereinafter claimed various arrange- '4 ments and combinations of the different elements aside from the complete combi: nation and I wish it understood that my invention is intended to be protected in all these varying particulars of construction and breadth of claim;

Having described my invention, what 1'. claim as new and desire to secure by Letters Patent, is: y

1. In a screen, a marginal frame for a" For piece of netting combined with said netting, said frame having two flanged members meeting at a corner, one of said members being provided with a corner-clamp in the form of an ear overlapping the flange of the other member.

2. In a screen, a marginal frame for apiece of netting and said netting, said. frame having two adjacent members, one of said members being laterally bent lengthwise to form a flange, and the other member being similarly bent to form a flange whose end meets the end of-said other flange, and thence similarly bent again at its extreme edge, said last mentioned edge portion having a projecting car at its end next the corner bent into clamping engagement with the flange of said first mentioned member.

In a screen, a marginal frame for a piece of netting, said frame having two members meeting at a corner and each consisting of a metal plate folded on itself longitudinally to form two strips for receiving between them the netting, each of said members being laterally bent to form a flange, one of said members having a projecting ear overlapped transversly across tl e flange of the other member into cl amping engagement therewith at the corner, and internal means for binding the frame at the corner, consisting of a projection extending between the strips of one member and bent laterally within the flange of. said member and immovably connected also with the other member. 7

i. In a screen, a marginal frame for a piece of netting, said frame having two members meeting at a corner and each con sisting of. a metal plate folded on itself longitudinally to form two strips for receiving between them the netting, ach of said members being laterally bent to form a flange, and internal means for binding the frame at the corner, consisting of a projection extending in one direction between the strips of one member and bent laterally within the flange of said member, and a projection extending in another direction between the strips of the other membi-jar and bent laterally within the flange of said other member, said two projections within the respective strips and flanges being immoyzbly connected respectively with the opposite members.

In a screen, a marginal frame for a piece of netting, said frame having two members meeting at a corner and each consisting of a metal plate folded on itself lon itudinally to form two strips for receiving between them the netting, and a corner plate extendin between the strips of both of said members at the corner, said members and the opposite ends of said plate being laterally deflected to lock them immovably together.

6. In a screen, a marginal frame for a piece of netting, said frame having two members meeting at a corner, combined with a piece of netting, and a corner plate lying together at said meeting corner and all seecured rigidly together at the corner, at least part of the securing means consisting of the lateral bending together of the parts.

7. In a screen, a piece of netting having a corner, a corner plate at said corner, a frame member folded lengthwise on itself to embrace one edge of said netting and plate, and an adjacent frame member likewise folded lengthwise on itself to embrace an adjacent edge of said netting and plate, the mteting ends of said two members abutting endwise in one and the same plane, and said netting, corner plate and two frame members being laterally bent along lines extending lengthwise of the frame members to interlock them all immovably together.

8. In. a screen, a piece of netting having a corner, a corner plate secured to said netting at said corner, a frame member folded lengthwise on itself to embrace one edge of said netting and plate, and an adjacent frame member likewise folded lengthwise on itself to embrace an adjacent edge of said netting and plate, and said corner plate and two frame members being laterally bent along lines extending lengthwise of the frame members to interlock them immovably together.

9. In a screen, a piece of netting having a corner, a corner plate at said corner, a frame member folded lengthwise on itself to e1nbrace one edge of said netting and plate, and an adjacent frame member likewise folded len thwise on itself to embrace an adjacent edge of said netting and plate, one of said frame members being cut away at its end to form a recntrant angle, and the other of said members having a corner fitting said angle, said two members when thus fitted together lying in one and the same plane, and each member and the contained corner plate being laterally bent lengthwise of the memher to form a marginal flange.

10. In a screen, a piece of netting having a corner, a corner plate at said corner, a frame member folded lengthwise on itself to embrace one edge of said netting and plate, and an adjacent frame member likewise folded lengthwise on itself to embrace an adjacent edge of said netting and plate, one of said frame members being cut away at its end to form a reentrant angle, and the other of said. members having a corner fitting said angle, said two members when thus fitted together lying in one and the same plane, and each member and the contained corner plate being laterally bent lengthwise of the member to form a marginal flange, the embraced edges of said corner plate extending substantially to the fold of the re spective frame members and being cut away at its extreme corner to form a reentrant angle to facilitate said flange formation at the corner.

11. In a screen, a piece of netting having a corner, a corner plate atsaid corner, a frame member folded lengthwise on itself to embrace one edge of said netting and plate, and an adjacent frame member likewise folded lengthwise on itself to embrace an adjacent edge of said netting and plate, one of said frame members being cut away at its end to form a reentrant angle, and the other of said members having a corner fitting said angle, said two members when thus fitted together lying in one and the same plane, and each member and the contained corner plate being laterally bent lengthwise of the member to form a marginal flange, the embraced edges of said corner plate extending substantially to the fold of the respective frame members and being cut away at its extreme corner to form a reentrant angle to facilitate said flange formation at the corner, and one of said members being longitudinally bent at its outer edge laterally of its flange in the direction of the body of the screen and proopies of this patent may be obtained for vided withan end projection on said last mentioned bent portion, said projection being overlapped into clamping engagement with and transversely of the flange of the other frame member.

12. In a screen, a piece of netting having a corner, a marginal frame for said netting, having two members meeting endwise at said corner in one and the same plane to constitute a smooth flush corner, a corner piece extending diametrically across the corner of the netting and from one frame member to the other, said frame members, corner piece and netting being immovably secured together, at least a part of the securing construction consisting of deflections of said two frame members and corner piece for crimping them together in interlocked rigid relation.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

ENOCH OHNSTRAND.

WVitnesses:

ABERTH E. OHNSTRAND, GEORGE W. Coornn.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

